No more unreasonable than not having an air traffic controller with a stammer.
Fantastic ! That's a really great comparison ! Thanks !
It's really not a question of discrimination. In an operation such as an airline, passengers are transient, constantly changing, and pretty much unpredictable. Sure, diversions happen occasionally because passengers are taken ill in flight. But we should expect much higher standards of reliability in the regular staff. Anyone who has a significant risk of an anaphylactic reaction occurring at FL 370 SHOULD NOT BE CREW - PERIOD.